Εξειδίκευση τύπου :	Άρθρο σε επιστημονικό περιοδικό
Τίτλος:	Calcium-modified clinoptilolite as a recovery medium of phosphate and potassium from anaerobically digested olive mill wastewater
Δημιουργός/Συγγραφέας:	Mitrogiannis, Dimitris Psychoyou, Maria Kornaros, Michael E Tsigkou, Konstantina Brulé, Mathieu Koukouzas, Nikolaos Alexopoulos, Dimitris [EL] Παλλές, Δημήτρης[EN] Palles, Dimitris [EL] Καμίτσος, Ευστράτιος Ι.[EN] Kamitsos, Efstratios I. Oikonomou, Georgios Papoutsa, Angeliki Xydous, Stamatis Baziotis, Ioannis
Μέλος Ερευνητικής ομάδας:	[EL] Παλλές, Δημήτρης[EN] Palles, Dimitris
Εκδότης:	Springer
Ημερομηνία:	2020-01
Γλώσσα:	Αγγλικά
ISSN:	0944-1344 1614-7499
DOI:	10.1007/s11356-019-07212-5
Άλλο:	31838691
Περίληψη:	Olive mill wastewater (OMW) is characterized as a high-strength effluent due to the high organic load, low biodegradability, and presence of phytotoxic compounds. Most of the OMW treatment methods proposed, including adsorption, focus mainly on the reduction of chemical oxygen demand and recovery of polyphenols. Adsorption studies aiming at nutrient removal from OMW are very limited. In the present work, Ca(OH)2-treated zeolite (CaT-Z) in a granular form was used for simultaneous recovery of phosphate (PO43-) and potassium (K+) ions from two samples of anaerobically digested OMW. Nutrient adsorption was investigated as a function of contact time, pH and dilution of OMW with deionized water. The lower removal efficiency of phosphorus (P) by CaT-Z was observed at higher dilution ratios consisted of 3.125-6.25% OMW-1 and 5% OMW-2. The maximum P removal was 73.9% in 25% OMW-1 and 85.9% in 10% OMW-2. Potassium removal, as the predominant cation of OMW samples, increased from 17.3 to 46.1% in OMW-1 and from 15.1 to 57.7% in OMW-2 with increasing dilution. The maximum experimental adsorption capacities were 15.8 mg K and 2.14 mg P per gram of CaT-Z. Five sequential treatments of 50% OMW-2 with fresh CaT-Z at each stage ensured a cumulative removal of 87.5% for P and 74.9% for K. Adsorption kinetics were faster for K than for P. The plant-available P was found to be the predominant fraction on the loaded CaT-Z. Electron Probe Micro-analysis confirmed the enhanced content of K and P on the loaded CaT-Z, whereas X-ray mapping revealed the co-distribution of Ca and P. This study demonstrates the potential usage of CaT-Z as an immobilization medium of P and K from anaerobically treated OMW.
Τίτλος πηγής δημοσίευσης:	Environmental science and pollution research international
Τόμος/Κεφάλαιο:	27
Τεύχος:	3
Σελίδες:	2977–2991
Θεματική Κατηγορία:	[EL] Χημική τεχνολογία[EN] Chemical technolgy [EL] Φασματοσκοπία[EN] Spectroscopy [EL] Βιομηχανική έρευνα. Έρευνα και ανάπτυξη[EN] Industrial research. Research and development [EL] Επιστήμες περιβάλλοντος[EN] Environmental sciences
Λέξεις-Κλειδιά:	Adsorption Anaerobic digestion Olive mill wastewater Phosphate Potassium Zeolite Calcium Industrial Waste Olive Oil Phosphates Potassium Waste Disposal, Fluid Wastewater Zeolites Olea
Κάτοχος πνευματικών δικαιωμάτων:	Copyright © 2019 Springer-Verlag GmbH Germany, part of Springer Nature
Ηλεκτρονική διεύθυνση στον εκδότη (link):	https://link.springer.com/article/10.1007/s11356-019-07212-5
Ηλεκτρονική διεύθυνση περιοδικού (link) :	https://www.springer.com/journal/11356
Εμφανίζεται στις συλλογές:	Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο